Two bearing-mounted motors drive each pump independently.
The pumps draw water from the integral reservoir.
The differential pressure across the Venturi gives flow rate. Each pump has its own inlet valve.
A two-way valve in the system allows the pumps to work alone, in parallel or in series.
The water then returns to the reservoir for re-use, keeping water use to a minimum.
Instrument and control modules fit into a frame above and behind the pumps.
The water travels through strainers and a series of valves to be delivered to a Venturi meter.
A display on each Motor Drive shows speed and torque and automatically calculates and displays true shaft power.
It also allows students to see (and hear) cavitation and understand the use of a Venturi meter and differential pressure measurement to find flow rate.
Each pump has an electronic Motor Drive to control its speed, a load cell to measure torque and a sensor to measure pump speed.
